Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Single-cell transcriptomic analysis of lipoprotein transport in yolk sac membrane endodermal epithelial cells of chicken embryos

ABSTRACT: This study investigates the transcriptional landscape of yolk sac membrane (YSM) endodermal epithelial cells in chicken embryos using single-cell RNA sequencing. The yolk sac membrane plays a critical role in nutrient absorption and transport, particularly in lipoprotein metabolism during early embryonic development. Single-cell RNA sequencing was performed on YSM samples collected at embryonic day 4 (E4) and embryonic day 7 (E7). After quality control filtering, high-quality cells were retained for downstream analysis. Clustering analysis identified distinct cellular populations, and gene expression profiles were analyzed to characterize functional differences across developmental stages. The processed data include filtered gene expression matrices, cell barcode annotations, gene feature annotations, and cell-level metadata including clustering assignments. Raw sequencing data are available in the Sequence Read Archive (SRA).

ORGANISM(S): Gallus gallus

PROVIDER: GSE329577 | GEO | 2026/05/01

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Brain-Engrafted Monocyte-derived Macrophages from Blood and Skull-Bone Marrow Exhibit Distinct Properties [bulkRNA_braintissue]

Project description:Microglia arise from yolk sac (YS) progenitors and are thought to persist throughout life with minimal input from adult hematopoiesis. However, whether brain-engrafted monocyte-derived macrophages (MDM) exist at homeostasis and during turnover, and how they function relative to yolk sac-derived microglia (YSM) remain unsettled. Here, we combine lineage tracing, pharmacological microglia depletion, and multi-omics profiling to define the ontogeny, identity, and function of MDM in the mouse brain. Despite sharing the parenchymal milieu, MDM display unique transcriptional and epigenetic landscapes distinct from YSM. Fate-mapping reveals that newly engrafted MDM transiently express CD206, echoing a developmental stage of embryonic microglial precursors. The engraftment and polarization of MDM are modulated by the CSF1R ligand IL 34 and the chemokine receptor CCR2. Furthermore, parabiosis and skull‑flap transplantation reveal that both blood and skull marrow supply the niche via distinct routes, yielding origin‑biased MDM states. Functionally, engraftment of MDM exacerbates cuprizone-mediated demyelination. Together, our study reveals the cellular dynamics of brain parenchymal macrophages at homeostasis and during turnover. We define the core molecular features and heterogeneous origins of MDM and imply their context-dependent roles in CNS pathology.

2026-03-11 | GSE313388 | GEO

Brain-Engrafted Monocyte-derived Macrophages from Blood and Skull-Bone Marrow Exhibit Distinct Properties [bulkRNA_isolatedBrainParenchymalMacrophages]

2026-03-11 | GSE313387 | GEO

Brain-Engrafted Monocyte-derived Macrophages from Blood and Skull-Bone Marrow Exhibit Distinct Properties [scRNA_DR3X]

Project description:Microglia arise from yolk sac progenitors and are thought to persist throughout life with minimal input from adult hematopoiesis. However, whether brain-engrafted monocyte-derived macrophages (MDM) exist at homeostasis and during turnover, and how they function relative to yolk sac-derived microglia (YSM) remain unsettled. Here, we combine lineage tracing, pharmacological microglia depletion, and multi-omics profiling to define the ontogeny, identity, and function of brain parenchymal macrophages. Despite sharing the parenchymal milieu, MDM display transcriptional and epigenetic landscapes distinct from YSM. Fate-mapping reveals that brain-engrafted MDM transiently express CD206, echoing a developmental stage of microglial precursors. MDM engraftment and polarization are modulated by IL-34 and CCR2. Furthermore, parabiosis and skull‑flap transplantation reveal that both blood and skull marrow supply the niche, yielding origin‑biased MDM states. Functionally, MDM engraftment enhanced cuprizone-mediated demyelination. Together, our study defines the origins, molecular features, and context-dependent roles of brain parenchymal macrophages across homeostasis, turnover, and CNS pathology.

2026-03-11 | GSE320070 | GEO

Brain-Engrafted Monocyte-derived Macrophages from Blood and Skull-Bone Marrow Exhibit Distinct Properties [ATAC-seq]

2026-03-11 | GSE319243 | GEO

Brain-Engrafted Monocyte-derived Macrophages from Blood and Skull-Bone Marrow Exhibit Distinct Properties [scRNA_FIRE-ctrl-blood-skull]

2026-03-11 | GSE319708 | GEO

Brain-Engrafted Monocyte-derived Macrophages from Blood and Skull-Bone Marrow Exhibit Distinct Properties [Cut-n-Tag]

2026-03-11 | GSE319167 | GEO

Expression profile of Chicken Early Yolksac Endodermal Tissues

Project description:A major role of yolk sac endoderm is the uptake of lipids and other constituents from the yolk and transfer of these components into the embryonic circulation. The molecular basis of the initial step of this regionalization has largely remained unclear. Using chick as a model system, we generated high-quality transcriptomic datasets of different stages of the yolksac endoderm and analyzed their molecular heterogeneity. Two independent samples of total RNA were isolated from yolk sac endodermal tissues on embryonic day 1, 2, 3, and 4. 5 M-NM-<g of RNA from each sample (total of 8 samples) were used to screen Affymetrix Chicken Genome Array without an amplification step.

2012-07-08 | E-GEOD-27958 | biostudies-arrayexpress

Expression data from Tnrc6a (GW182) mutant yolk sac

Project description:GW182 (Tnrc6a) is a key component of RISC (miRNA-Induced Silencing Complex) that plays a critical role in miRNA-mediated gene silencing. Here, we show that GW182 is expressed in the yolk sac endoderm, and that gene-trap disruption of GW182 leads to growth arrest of yolk sac endoderm, impaired hematopoiesis and embryonic lethality. To investigate roles of GW182 in the yolk sac endoderm, we assessed changes in mRNA expression in the yolk sac of E9.5 GW182gt/gt embryos using microarrays (Affymetrix).

2011-09-01 | GSE30244 | GEO

Expression profile of Chicken Early Yolksac Endodermal Tissues

2012-07-09 | GSE27958 | GEO

Host transcriptomic responses of chicken embryos during Avian Pathogenic Escherichia coli infection reveal the significant role of the yolk sac in embryonic mortality

Project description:Colibacillosis caused by avian pathogenic Escherichia coli (APEC) is a major disease syndrome in poultry with the yolk sac infection recognized as a leading factor contributing to embryonic mortality. Yolk sac is the initial site of infection, however its contribution in embryonic mortality at molecular level has remained unexplored. To address this critical gap, we conducted RNA sequencing (RNA-seq) to analyze the comprehensive in vivo transcriptomic profiles of yolk sac and embryonic liver from APEC-infected embryos, comparing dead embryos with those that survived and mock-infected controls, to uncover key differences in host responses in multiple scenarios. Our results revealed that dead embryos displayed significant pro-inflammatory cytokine activity and cellular senescence, disrupted lipid and energy metabolism, and compromised antioxidative defenses, particularly in the yolk sac. In contrast, surviving embryos exhibited a regulated inflammatory response, enhanced mitochondrial activity, robust antioxidative responses and tissue repair mechanisms, which likely underpinned its resilience. Notably, yolk sac showed positive correlation (r = 0.531) with the embryonic liver, but demonstrated more severe inflammation and metabolic dysregulation, thereby highlighting its heightened vulnerability. Furthermore, reactive oxygen species (ROS) levels, the balance of the inflammatory response, and yolk sac integrity are crucial determinants of embryonic survival, with mitochondrial dysfunction serving as a key regulator of host immune and metabolic adaptation. The insights provide a deeper understanding of the previously overlooked role of yolk sac compared to liver during APEC infection, offering potential avenues for improving host resilience and mitigating economic losses in poultry.

2025-07-21 | GSE300118 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data